Resun Aquarium Electro Magnetic Air Pump is silent and does not make much noise when working. It can be connected with almost any air pipe that will facilitate the generation of more oxygen into your aquarium. The air pump will help to release oxygen into water. This process is extremely beneficial for your aquarium fish as it helps to get rid of the impure gases as well. The circulation of water can be achieved by a good filter as well but an air pump will enhance the result drastically. It does not end here you can attach the air pump with various ornamental decorations in your aquarium to increase its aesthetic appeal. You can place the air stone between plants, rocks and other aquarium decorations which will give more style and attraction to your fish tank.Keep the air pump above your fish tank water level.